Resolved! Two definitions forgotten in the STM32F767.svd file
The STM32F767.svd file is provided by the STM32CudeIDE, within the com.st.stm32cube.ide.mcu.productdb.debug_1.5.0.202011051456 directory. The two forgotten definitions are :field CAN3EN in the RCC_APB1ENR register;field CAN3RST in the RCC_APB1RSTR re...